Noise Floor Reduction in Frequency Delta-Sigma Modulation Microphone Sensors [PDF]
Sensors, 2021 Frequency delta-sigma modulator (FDSM) employing a variable frequency oscillator is a novel replacement of the classical delta-sigma modulators. This is advantageous for application to sensors, because an ADC can be intrinsically integrated with the ...
Koichi Maezawa +2 more
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Description of a 2-Bit Adaptive Sigma-Delta Modulation System with Minimized Idle Tones [PDF]
EURASIP Journal on Advances in Signal Processing, 2007 A 2-bit adaptive sigma delta modulation system that inherently eliminates the idle tones present in conventional and other adaptive sigma delta systems is described.
G. S. Tombras, E. A. Prosalentis
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Low-Pressure Small MEMS Accelerometer Using Sigma-Delta Modulation [PDF]
Proceedings, 2018 Encapsulation of MEMS accelerometers in vacuum is advantageous, since it allows integration with other sensors, leading to size and cost reduction. One technique to operate MEMS accelerometers in vacuum is the use of closed-loop Sigma-Delta modulation ...
Vasco Lima +3 more
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A Driving Technique for AC-AC Direct Matrix Converters Based on Sigma-Delta Modulation [PDF]
Energies, 2019 Direct conversion of AC power between three-phase systems operating at different frequencies can be achieved using solid-state circuits known as matrix converters.
Simone Orcioni +3 more
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Computationally efficient low-power sigma delta modulation-based image processing algorithm
Mehran University Research Journal of Engineering and Technology, 2023 Digital Image Processing has dominated Digital Signal Processing at the cost of more memory, resources, and high computational power. In image processing, filtering transformations and other operations need complex multiplications, and the multiplier is ...
Aneela Pathan +3 more
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Digital OFDM-PON Based on Delta–Sigma Modulation Employing Binary IM-DD Channels
IEEE Photonics Journal, 2017 In this paper, a delta–sigma modulation is proposed for the orthogonal frequency division multiplexed-passive optical network (OFDM-PON) to enable transmission of OFDM signals via binary intensity modulation and direct detection (IM-DD) channels ...
Cai Li +5 more
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A Scalable Four-Channel Frequency-Division Multiplexing MIMO Radar Utilizing Single-Sideband Delta–Sigma Modulation [PDF]
IEEE transactions on microwave theory and techniques, 2019 A scalable four-channel multiple-input multiple-output (MIMO) radar that features a modular system architecture and a novel frequency-division multiplexing approach is presented in this article.
Herman Jalli Ng +2 more
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Hybrid fiber–THz fronthaul supporting up to 16384-QAM-OFDM with the delta-sigma modulation
Optics Letters, 2022 With the progress of high-capacity radio access networks, ultra-dense small cells are rapidly being deployed in urban areas. As a result, the deployment of a large number of optical fibers in urban areas becomes a severe issue. In this Letter, we propose
Lu Zhang +9 more
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Design Optimization of Feedforward Equalization for Mobile Fronthaul Based on Delta-Sigma Modulation With High-Order QAM Signals [PDF]
IEEE Photonics JournalDelta-sigma modulation can be used as a high spectral efficiency interface in place of conventional common public radio interface (CPRI) in mobile fronthaul (MFH) networks.
Jianghao Li +2 more
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Predictive Delta Sigma Modulation for Three-Phase to Three-Phase Matrix Converters
IEEE transactions on power electronics, 2019 As research in matrix converters (MCs) has progressed over time, space vector modulation has emerged as the most popular technique for their modulation.
Tabish Nazir Mir +2 more
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